What does the term “BTU” stand for?

The term “BTU” stands for British Thermal Unit, which is a standard unit of measurement for heat energy. One BTU is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at a constant pressure. This measurement is commonly used in various industries, including heating, ventilation, and air conditioning (HVAC), as well as in evaluating the energy content of fuels. Understanding BTU is essential for evaluating the efficiency and performance of heating systems and appliances. This knowledge helps professionals gauge how much energy is needed to achieve desired temperature changes, allowing for more effective and efficient energy use in residential and commercial settings.